ES2175000T3 - METHOD AND EQUIPMENT TO IDENTIFY AN UNINFLATED TIRE IN A MOTOR VEHICLE. - Google Patents

METHOD AND EQUIPMENT TO IDENTIFY AN UNINFLATED TIRE IN A MOTOR VEHICLE.

Info

Publication number
ES2175000T3
ES2175000T3 ES96110161T ES96110161T ES2175000T3 ES 2175000 T3 ES2175000 T3 ES 2175000T3 ES 96110161 T ES96110161 T ES 96110161T ES 96110161 T ES96110161 T ES 96110161T ES 2175000 T3 ES2175000 T3 ES 2175000T3
Authority
ES
Spain
Prior art keywords
epu
axle
difference
process unit
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES96110161T
Other languages
Spanish (es)
Inventor
Maurizio Cisternino
Fulvio Cascio
Cristofaro Francesco De
Erica Bargis
Cesare Ponti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fiat Auto SpA filed Critical Fiat Auto SpA
Application granted granted Critical
Publication of ES2175000T3 publication Critical patent/ES2175000T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/061—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

DETECTA LA VELOCIDAD ANGULAR ( OE 1- OE 4 ) DE CADA RUEDA ASI COMO LAS SEÑALES DE VELOCIDAD CORRESPONDIENTES QUE SE GENERAN Y PROCESAN EN UNA UNIDAD DE PROCESO ELECTRONICO (EPU) PROGRAMADA PARA CALCULAR LA DIFERENCIA ENTRE LA SUMA DE LAS SEÑALES DE VELOCIDAD RELATIVAS A DOS RUEDAS DIAGONALMENTE OPUESTAS (1,4) Y LA SUMA DE LAS SEÑALES RELATIVAS A LAS OTRAS DOS RUEDAS (2,3). LA UNIDAD DE PROCESO (EPU) GENERA UNA SEÑAL DE ALARMA CUANDO EL VALOR DE ESTA DIFERENCIA ES MAYOR QUE EL VALOR DE REFERENCIA . LA SEÑAL DE ESTA DIFERENCIA IDENTIFICA LA DIAGONAL (1,4; 2,3) EN LA QUE SE LOCALIZA EL NEUMATICO QUE ESTA, AL MENOS PARCIALMENTE, DESINFLADO. LA UNIDAD DE PROCESO (EPU) CALCULA UN NUMERO DE VALORES SUCESIVOS DEL RADIO DE CURVATURA (R) DE LAS TRAYECTORIAS SEGUIDAS POR EL EJE FRONTAL (1,2) Y POR EL EJE TRASERO (3,4) DEL VEHICULO (V) A PARTIR DE UNA ECUACION PREDETERMINADA Y COMPARA EL RADIO (R) ASI CALCULADO PARA EL EJE FRONTAL Y EL EJE TRASERO CON LOS RESPECTIVOS VALORES DE REFERENCIA PREDETERMINADOS. LA UNIDAD DE PROCESO (EPU) CUENTA EL NUMERO DE VALORES DEL RADIO DE CURVATURA (R) REFERIDOS A CADA EJE QUE SEAN MENORES AL VALOR DE REFERENCIA CORRESPONDIENTE E IDENTIFICA EL EJE QUE TIENE EL MAYOR NUMERO DE RADIO DE CURVATURA (R) DETERMINANDO ASI EL EJE DEL VEHICULO (V) QUE TIENE UN NEUMATICO PARCIALMENTE DESINFLADO.DETECT THE ANGULAR SPEED (OE 1- OE 4) OF EACH WHEEL AS WELL AS THE CORRESPONDING SPEED SIGNS THAT ARE GENERATED AND PROCESSED IN AN ELECTRONIC PROCESS UNIT (EPU) SCHEDULED TO CALCULATE THE DIFFERENCE BETWEEN THE SUM OF RELEVANCE SIGNALS TWO DIESELY OPPOSITE WHEELS (1,4) AND THE SUM OF SIGNS RELATING TO THE OTHER TWO WHEELS (2,3). THE PROCESS UNIT (EPU) GENERATES AN ALARM SIGNAL WHEN THE VALUE OF THIS DIFFERENCE IS GREATER THAN THE VALUE OF REFERENCE. THE SIGN OF THIS DIFFERENCE IDENTIFIES THE DIAGONAL (1,4; 2,3) IN WHICH THE TIRE IS LOCATED, AT LEAST PARTIALLY, UNINFLATED. THE PROCESS UNIT (EPU) CALCULATES A NUMBER OF SUCCESSIVE VALUES OF THE CURVATURE RADIUS (R) OF THE TRAJECTORIES FOLLOWED BY THE FRONT AXLE (1,2) AND BY THE REAR AXLE (3,4) OF THE VEHICLE (V) FROM OF A DEFAULT EQUATION AND COMPARE THE RADIUS (R) ASI CALCULATED FOR THE FRONT AXLE AND THE REAR AXLE WITH THE RESPECTIVE DEFAULT REFERENCE VALUES. THE PROCESSING UNIT (EPU) COUNTED THE NUMBER OF VALUES OF THE CURVATURE RADIUS (R) REFERRED TO EACH AXIS WHICH ARE LESS THAN THE CORRESPONDING AND IDENTIFYING REFERENCE VALUE THE AXLE THAT HAS THE GREATEST CURVATURE RADIUM NUMBER (R) DETERMINING AS WELL AXLE OF THE VEHICLE (V) THAT HAS A PARTIALLY UNINFLATED TIRE.

ES96110161T 1995-06-26 1996-06-24 METHOD AND EQUIPMENT TO IDENTIFY AN UNINFLATED TIRE IN A MOTOR VEHICLE. Expired - Lifetime ES2175000T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95TO000531A IT1276440B1 (en) 1995-06-26 1995-06-26 PROCEDURE AND EQUIPMENT FOR IDENTIFYING A FLAT TIRE IN A MOTOR VEHICLE.

Publications (1)

Publication Number Publication Date
ES2175000T3 true ES2175000T3 (en) 2002-11-16

Family

ID=11413674

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96110161T Expired - Lifetime ES2175000T3 (en) 1995-06-26 1996-06-24 METHOD AND EQUIPMENT TO IDENTIFY AN UNINFLATED TIRE IN A MOTOR VEHICLE.

Country Status (4)

Country Link
EP (1) EP0751019B1 (en)
DE (1) DE69620681T2 (en)
ES (1) ES2175000T3 (en)
IT (1) IT1276440B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802498B4 (en) * 1998-01-23 2005-07-14 Siemens Ag Method and device for tire pressure monitoring
FR2785574B1 (en) 1998-11-10 2001-01-12 Jean Claude Galland METHODS AND DEVICES FOR DETECTION AND MEASUREMENT DURING THE ROAD OF TIRE DEFLATION
US12115821B2 (en) 2021-07-02 2024-10-15 The Goodyear Tire & Rubber Company Tire pressure monitoring system employing axle cross comparison
US12377835B2 (en) * 2021-09-30 2025-08-05 Canoo Technologies Inc. System and method in vehicle path prediction based on odometry and inertial measurement unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664536B1 (en) * 1990-07-12 1992-10-09 Renault METHOD FOR DETECTING THE INFLATION OF A TIRE.
GB9026558D0 (en) * 1990-12-06 1991-01-23 Sumitomo Rubber Ind Method of detecting a deflated tyre on a vehicle
US5710539A (en) * 1993-12-07 1998-01-20 Sumitomo Electric Industrties, Ltd. Tire air-pressure reduction detecting apparatus

Also Published As

Publication number Publication date
ITTO950531A0 (en) 1995-06-26
IT1276440B1 (en) 1997-10-31
DE69620681D1 (en) 2002-05-23
EP0751019A1 (en) 1997-01-02
DE69620681T2 (en) 2002-08-14
EP0751019B1 (en) 2002-04-17
ITTO950531A1 (en) 1996-12-26

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